Option Paper P5- Assumed Knowledge

Hello,

I recently read an article on ACCA website regarding the option papers and how in P5 there is a lot of assumed knowledge from F5 and some from F9. It then mentioned the following:

‘New materials available from BPP Learning Media and Kaplan Publishing in July have been designed to help you understand or recall the relevant fundamental knowledge underpinning
the Options papers.’

I have searched everywhere but cannot find these materials. Does anybody know what they are and whether they still exist and can be purchased?

Thanks

Jamie